Chinese medicine powder test sieve

Monday March-03 2025  17:16:20

Chinese medicine powder test sieve is a screening device used for particle size analysis and quality control of Chinese medicine powder. It plays a vital role in ensuring the uniformity and quality of Chinese medicine powder. It is a device that separates Chinese medicine powder according to different particle sizes through vibration screening technology. It uses high-frequency vibration to make the Chinese medicine powder move on the sieve surface. 

chinese medicine powder test sieve video

How does the chinese medicine powder test sieve work?

The working principle of Chinese medicine powder test sieve is mainly based on vibration screening technology. The excitation force generated by the vibration motor makes the sieve body vibrate at high frequency, thereby realizing the screening and grading of Chinese medicine powder.

① Material feeding: Chinese medicine powder enters the sieve surface from the feed port.

② Vibration screening: Under the action of high-frequency vibration of the sieve body, the Chinese medicine powder is thrown up on the sieve surface and moves forward in a straight line.

③ Particle size classification: Chinese medicine powder particles smaller than the sieve hole pass through the sieve to become qualified products, and Chinese medicine powder particles larger than the sieve hole move along the sieve surface and are discharged from the discharge port.

What are the advantages of the Chinese medicine powder test sieve?

 

1. Solve the problem of high fiber content of Chinese medicine powder and easy clogging of the screen: Many Chinese medicinal materials are rich in fiber, which is easy to entangle and clog the screen after crushing, affecting the screening efficiency and accuracy. Use the vibration of the Chinese medicine powder test sieve to effectively clean the fibers on the screen and prevent clogging.

2. Solve the problem of Chinese medicine powder clumping and difficulty in screening: Some Chinese medicine powders are hygroscopic, easy to agglomerate and stick together, affecting the screening effect. Break up the agglomerated Chinese medicine powder by vibration so that it can pass through the screen smoothly. Screening in a dry environment reduces the hygroscopicity of Chinese medicine powder.

3. Deal with the problem of easy static electricity in Chinese medicine powder: Chinese medicine powder is easy to generate static electricity during friction, causing the powder to be adsorbed on the screen, affecting the screening accuracy. The Chinese medicine powder test sieve uses a screen that has been treated with anti-static to reduce static electricity generation, appropriately increase the environmental humidity, and reduce static electricity accumulation.

4. Deal with uneven particle size distribution of Chinese medicine powder: The particle size distribution of Chinese medicine powder may be uneven, requiring precise screening. The Chinese medicine powder test sieve uses multiple layers of screens to screen multiple particle sizes at the same time. Select the appropriate screen mesh and aperture according to the particle size requirements.

5. Solve the problem of dust and loss of Chinese medicine powder: The Chinese medicine powder test sieve usually adopts a sealed design to prevent dust generated during the screening process. This not only reduces the loss of Chinese medicine powder, but also improves the working environment and protects the health of operators.

6. Adapt to the characteristics of different Chinese medicine powders: According to the characteristics of different Chinese medicine powders, the Chinese medicine powder test sieve can provide customized screening solutions. For Chinese medicine powder that is easy to agglomerate, you can choose a test sieve equipped with a disintegration device.

The structural composition of Chinese medicine powder test sieve

A sieve body, consisting of a base, a support frame, and a sieve frame, used to fix and support the sieve; Screen mesh is the core component of screening, usually made of stainless steel or polyester material, with different mesh sizes; Vibration device, including vibration motor, eccentric block, and spring, used to generate vibration, causing Chinese medicine powder to jump and layer on the sieve; Control system, used to adjust vibration frequency, amplitude, and screening time to achieve precise screening; And a collection device for collecting Chinese medicine powders of different particle sizes after screening.

Technical parameters of Chinese medicine powder test sieve

Application of Chinese medicine powder test sieve

1. Processing of Chinese medicine slices: Chinese medicine powder test sieve is widely used to screen dried Chinese medicine powder. Through screening, the uniformity and particle size of Chinese medicine powder can be ensured to meet the requirements of subsequent preparations or medication.

2. Chinese medicine extraction process: Chinese medicine powder test sieve can be used to separate impurities in crude Chinese medicine slices, remove stones, soil and other impurities in Chinese medicine slices, and ensure the purity and quality of the extract.

3. Processing of Chinese herbal medicine: Chinese medicine powder test sieve is used to screen dried Chinese herbal medicine raw materials to ensure the quality of raw materials. Through screening, unqualified particles and impurities in Chinese herbal medicines can be removed to improve the quality and purity of Chinese herbal medicines.

4. Production of Chinese medicine granule preparations: Chinese medicine powder test sieve is used to screen granular materials to ensure the uniformity and particle size of particles. Through screening, Chinese medicine granules with uniform particle size and regular shape can be obtained, thereby improving the quality and stability of granular preparations.

5. Grinding and sieving of medicinal materials: The powder after grinding the medicinal materials needs to be sieved through a test sieve to improve the release of active ingredients and efficacy of the medicine. Through sieving, impurities and unqualified particles generated during the grinding process can be removed.

6. Drug particle separation and solid-liquid separation: The Chinese medicine powder test sieve is used to separate particles of different particle sizes and to achieve solid-liquid separation of drugs and solutions, which helps to separate drugs from solutions and achieve drug purification and concentration.

Chinese medicine powder test sieve is a screening equipment specifically used for particle size analysis of traditional Chinese medicine powder. Due to the special properties of traditional Chinese medicine powder, such as high fiber content, easy agglomeration, and static electricity generation, the requirements for the experimental sieve are also high.